R&D trials
MEASUREMENT OF REGULATED POLLUTANT EMISSIONS AND NON-REGULATED POLLUTANT EMISSIONS
The challenges related to reducing pollutant emissions are now, more than ever, at the forefront of national and international concerns. Numerous studies have demonstrated their negative impacts on health and ecosystems.
At CRMT, we carry out Research and Development projects aimed at characterizing, quantifying, and comparing pollutant emissions both at the exhaust and beyond, including secondary particles.
The results of these studies contribute to a deeper understanding of the chemical processes behind pollution and their impacts on air quality. They also guide manufacturers and equipment suppliers in developing innovative and alternative solutions, while supporting public institutions in drafting new regulations.
SERVICES FOR DIFFERENT VEHICLE TYPES
Our expertise in measuring regulated and non-regulated pollutant emissions enables us to conduct studies on various types of vehicles:
- Heavy-duty vehicles: Trucks, buses, etc.
- Special road vehicles: Sweepers, refuse trucks, etc.
- Non-road machinery: Agricultural machinery, construction equipment, boats, trains, etc.
- Light-duty vehicles
Vehicles can be tested under real-world operating conditions or on certification routes (RDE, ISC, ISM) with cycles incorporating urban, extra-urban, and/or highway routes. We also offer tests on vehicles running on various types of standard fuels (B7, E95, E98, GNR, etc.), alternative fuels (CNG, LNG, H₂, HVO, B100, GTL, E85, etc.), or synthetic fuels (E-D, E-K, E-G, E-CH₄, green H₂, etc.)
ADVANCED TECHNOLOGIES
We use various analyzers to measure regulated pollutant emissions :
- PEMS (Portable Emission Monitoring System): This system enables high-precision measurements under real-world operating conditions. Among the pollutants measured are CO2, NOx, NO (NO2 by difference), CO, and hydrocarbons (HC).
- CEMS (Continuous Emission Monitoring System): Developed by CRMT, this tool allows for measurements during both the commercial operation of the vehicle and its development phase. Its portability and the autonomy provided by its telematics system ensure remote data collection, facilitating long-term measurement campaigns. The CEMS analyzer measures CO2, NOx, NH3, and particulate mass emissions.
Through collaboration with our various partners, we also offer measurement services for non-regulated pollutants using other technologies:
- OFR (Oxidation Flow Reactor): Used to study the formation of secondary aerosols in ambient air, this technology simulates aging of exhaust gases over several days in just a few minutes.
- FTIR (Fourier-Transform Infrared Spectroscopy): This technology measures not only regulated pollutants (NO, NO2, CO, CO2, THC, NH3) but also volatile organic compounds (VOCs), sulfur compounds, cyclic and aromatic compounds (toluene, benzene, etc.), formaldehyde, acetaldehyde, and formic acid.
- Other devices, such as the FMPS (Fast Mobility Particle Sizer Spectrometer) and the EEPS (Engine Exhaust Particle Sizer), can also be utilized depending on specific needs.
These technologies, combined with our expertise, enable us to deliver precise and reliable data, contributing to advancing knowledge and developing solutions for a cleaner future.
Our projects R&D trials
Equilibre project: 19 vehicles tested and 1.5 million km driven !
As part of the Équilibre project, CRMT assessed the environmental performance of CNG vehicles compared with diesel vehicles.
CORTEA : measuring pollutant emissions on light vehicles
CRMT has carried out R&D tests on various vehicles in the RDE cycle to measure various non-regulated pollutants that have an impact on air quality, such as volatile organic compounds (VOCs) and sulfur compounds.
European EASVOLEE project
As part of the EASVOLEE project, CRMT is playing a key role in measuring emissions of regulated and non-regulated pollutants from different types of vehicle under real operating conditions, in order to gather valuable data for improving air quality in Europe.
CAEFE project: a study of non-exhaust emissions, brake particles
CRMT, in collaboration with ADEME, Gustave Eiffel University and Telma, is carrying out a comprehensive study of pollutant emissions from a coach's brakes and exhaust under real-life conditions, designing and testing innovative particle capture devices to reduce pollution and improve air quality.